Combination tire carrier and rim spreader



Jan. 10, 1928.

J. LARSON COMBINATION TIRE CARRIER AND RIM SPREADER 2 Sheets-Sheet 1 Fil djsv. 2:5, 1926 HN LARSON Jan. 10, 1928.

, 1,655,869 J. LARSON COMBINATION TIRE CARRIER AND RIM SPREADER Filed Nov. 23, 1926 2 Sheets-Sheet 2 zzaw iaea 2 7 2 7 gwuentoz LARSON 61154301 new;

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Hillel", F VLiiLI DITIT El'llflOVE, MINNESOTA, AFESFLEHFTOR 0F UNE-FUURTI-l' 330 JOHN COll'lil'zllIlilfitllIOlll' TIRE CARRIER RIM application filed lil'ovemher 23, 1926. Eleriat No. 150,357.

This invention relates to automotive equipment, and the main object is to provide an improved and eiiicicnt construction of tire carrier, which also embodies rim spreader and contractor, which may be con venientl v used for removing and replacing a tire with respect to its rim, when it is desired to repair the tire. Further and more specific objects will be disclosed in the course of tie iiollowinp; specitication, reference being had to the acconqaanying drawings, in which:

Fig. 1 is a plan elevation of the device, and showing. a ti rim in place upon it.

Fig. 2 is a sectional view about on the line -:2 in Fig.5. 1. l

l 3 represents a convenient lorin of soclret wrench for manipulating the mechanism of my improved carrier.

Fl g. l is a sectional elevation. as on tho 1-4- in Fig. l. i

Fig. 5 is a rear view, partly in section, as on the line 55 in l.

Fig. 6 is a sectional detail view, similar to the lower end of 4, but showing the rim engaging claws in a retracted position.

l-le'lerrinr; to the drawing more particularly and by reference characters A designates the main frame of the carrier, which is suitably secured, as by a bracket B, to the car, while C designates a tire rim, of the split ring; type. D depresents a wrench having a socket head 7, adapted to fit overand turn the heads 8, 9, 10 and 11.

The body A proper oi? the carrier is carried by the braclret B, and consists, primarily, of a central housing or box 12, from which extends three hollow radial arms 13, let and 15. Projecting from and slidably secured in the radial arm 13 is a non-rotata hle shank or bar 16. which is internally tlu'czulcd to receive a tlu'caded bolt l'l', jour baled, as at 18, in the housing); 12. The upper end oi? the bolt l? is provided. with a bevel pinion '19, which rnesl'les with a hovel gear 20, also journalod in the boar l2 and which carries the nut or bolt head 9], so that hv turning the member ll. it will be seen that he shank 16 will be either projected or rctracted, v s may he red.

The outer or lower end of the shanl: member 16 is provided with a relatively wide (from front to back) head 21 in which is iournaled bolt 22 having the head 9. This bolt has reversed threads, on its opposite end portions, which carry a pair of traveller blocks an d an to which. are pivoted a pair of claws or fingers 25, extending out through slots 26 of the head. These claws also operate between cars 27 of the head, which ears form a convenient channel recess for the rim C. l Vhen the bolt 992 is turned so that the members 23 24 are in their inner poit'ions, as shown in Fig. 6, then the claws are in retracted or inoperative positions. But when the bolt is turned to spread the .nfieinbers nth-52 i, then the claws 25 are projected in a curve so as to turn in over and impinge upon the flanges of the the rim, as shown in Fig. l, so as to grip. it firmly against the head 2 The outer ends of the radial arms i l and 15 are provided with hears 28, having; claws 29, which are operated by the bolts 10 and 11, and are substantially the same in structure and function to that just described inconncction with the lower head 21.

A loclrinp; mechanism is employed to prevent the rotation ol. the bolt 17, by unauthorized persons, and may be briefly described as follows: Secured to the inner side of the casing 12 is a lock 30, having a sliding bolt 31, and having a projecting cylinder 32 to receive the key The bolt 31 engages, and is adapted, when actuated by the turning of the key 33, to reciprocate a substantially U shaped member 34: which is slidablv held in a guide 35. The member 34 has a pin 36 which engages a lever 37', pivoted as at 38 to a bracket support 39. The lever 37 has a notched lug l0 which operates through a slot in the support 39 to engage a tooth of the pinion 19, to prevent it from turning). when the loclr locked, but is retracted to permit the pinion to turn when the lock is unlocked by the hey The use and operation of the device may be described as iollows:

"When used merely as a tire carrier the device is employed shown in Fig. l. i. e. the rim C. and the tire which it carries but which isnot shown, is primarilv carried bv the two heads 28 and the head 21 is calendcd so as to secure the rim rigidly with respect to the carrier. To remove the rim (with its tire) the lock 30 is first unlocked luv the lrev 33. The wrench 6 is then applied to the gear head 8 and turned so as to rotate the bolt 17 and retract the shanlr 2 I a Y 1,655,809

16 to release the head 21 from the rim. The rim is then pulled away from the head 21, when it may be released from the heads 28 by being lifted off of them. To replace the same or another rim, and tire, the operation is of course reversed.

' To remove a tire from the rim is accomplished as follows: The bolts 9, 10, and 11 areturned so that the claws and 29 are projected to firmly grip the rim, as in Fig.

5 With the lock 30 unlocked, pressure is nowapplied, by the wrench, to forcibly project thershank 16 until the rim divides, where its, ends meet, so that said ends may be ofl'set' from each other, to permit them to overlap when the rim is contracted. To contract the rim to a reduced circumference, so that the tire can be removed, it now only necessary to reverse the wrench to retract the shank 16. As the rim is firmly gripped at three circumferential points, it will be seen that the forced reduction of diameter will be easily accomplished. When the tire has been repaired it is replaced upon the rim which is then again opened up until its ends may be interlocked. The position of the contracted rim is indicated by dotted lines in Fig. 1.

It is understood that suitable modifica tions, may be made in the general design and structural details of the invention as herein shown and described, provided, how ever, that said modifications come within the spirit and scope of the appended claims. Having now therefore fully shown and described my invention. what I claim to be new and desire to protect by Letters Patent is:

1. A tire carrier having heads for circumferentially spaced engagement with the rim of the tire, means for spreading and contracting said heads with respect to each other, and gripping members carried by said heads for gripping the tire rim thereagainst, the gripping members Of the respective heads each including a jaw which is slidable in the head whereby it may be retracted to permit the rim to be removed from the heads.

2. A tire carrier having heads for circuml'erentially spaced engagement with the rim of the tire, means for spreading and contracting said heads with respect to each other, and gripping members carried by said heads for gripping the tire rim thereagainst, the gripping members of the respective heads each comprising a pair oi curved jaws slidably mounted in the head, and means for simultaneously projecting and retracting the jaws.

In testimony whereof I afi'ix my signature.

JOHN LARSON. 

